This is what the original piece of fabric looked like before I began painting it. It was just a random cotton scrap.
I painted on some thinned gesso. After that was dry, I used my stamp with magenta paint. I use cosmetic sponges to apply the paint to the stamp.
I used a thick paint brush and added some more magenta with white paint in a random way. I blow dry between each layer so I don't have to wait to paint.